Perhaps you should try some spelling variations:
"coder coder pda and programming" » "coder coder pda _ programming" (Expand search), "coder coder pda goal programming" (Expand search), "coder decoder pda and programming" (Expand search), "code code pda and programming" (Expand search), "decoder codec pda and programming" (Expand search), "coder coder nmda and programming" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder pda and programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder pda and programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder pda and programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder pda and programming") OR ("api python python python programming"))*.